Impact behaviour of prepreg laminates with dispersed core/shell particles in ply interfaces
Dispersion of C/SH microparticles between the interlaminar interfaces of glass/epoxy, carbon/epoxy and glass/phenolic laminates was successfully achieved and its effect on the laminate’s impact behaviour was investigated. A significant improvement in the energy absorption capability, the impact loa...
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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2014
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| Online Access: | http://hdl.handle.net/10356/61648 |
| _version_ | 1824456974147780608 |
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| author | Mubarak Ali Mohamed Ali |
| author2 | Sunil Chandrakant Joshi |
| author_facet | Sunil Chandrakant Joshi Mubarak Ali Mohamed Ali |
| author_sort | Mubarak Ali Mohamed Ali |
| collection | NTU |
| description | Dispersion of C/SH microparticles between the interlaminar interfaces of glass/epoxy, carbon/epoxy and glass/phenolic laminates was successfully achieved and its effect on the laminate’s impact behaviour was investigated. A significant improvement in the energy absorption capability, the impact load bearing capacity, the deflection characteristics of the C/SH modified laminates was observed. Deformation of the particles and tearing of their outer shells, along with their nano-size rubber cores impeded the crack propagation. Study of selective particle dispersion and the effect of particle weight fraction were also conducted.
Laminate’s flexural performance, before and after impact, was evaluated. An empirically derived particle influence factor indicated an optimum performance with 30 g/m2 particle distribution. Improvement in the impact performance of the C/SH modified scarf joints and their possible application in repair design are discussed. In summary, influence of C/SH particles in improving impact resistance of laminated composites was successfully examined in depth, validated, and explained. |
| first_indexed | 2025-02-19T04:02:37Z |
| format | Thesis |
| id | ntu-10356/61648 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T04:02:37Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/616482023-03-11T17:30:53Z Impact behaviour of prepreg laminates with dispersed core/shell particles in ply interfaces Mubarak Ali Mohamed Ali Sunil Chandrakant Joshi School of Mechanical and Aerospace Engineering DRNTU::Engineering::Materials::Composite materials DRNTU::Engineering::Materials::Material testing and characterization Dispersion of C/SH microparticles between the interlaminar interfaces of glass/epoxy, carbon/epoxy and glass/phenolic laminates was successfully achieved and its effect on the laminate’s impact behaviour was investigated. A significant improvement in the energy absorption capability, the impact load bearing capacity, the deflection characteristics of the C/SH modified laminates was observed. Deformation of the particles and tearing of their outer shells, along with their nano-size rubber cores impeded the crack propagation. Study of selective particle dispersion and the effect of particle weight fraction were also conducted. Laminate’s flexural performance, before and after impact, was evaluated. An empirically derived particle influence factor indicated an optimum performance with 30 g/m2 particle distribution. Improvement in the impact performance of the C/SH modified scarf joints and their possible application in repair design are discussed. In summary, influence of C/SH particles in improving impact resistance of laminated composites was successfully examined in depth, validated, and explained. Doctor of Philosophy (MAE) 2014-07-07T01:26:51Z 2014-07-07T01:26:51Z 2014 2014 Thesis http://hdl.handle.net/10356/61648 en 180 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Materials::Composite materials DRNTU::Engineering::Materials::Material testing and characterization Mubarak Ali Mohamed Ali Impact behaviour of prepreg laminates with dispersed core/shell particles in ply interfaces |
| title | Impact behaviour of prepreg laminates with dispersed core/shell particles in ply interfaces |
| title_full | Impact behaviour of prepreg laminates with dispersed core/shell particles in ply interfaces |
| title_fullStr | Impact behaviour of prepreg laminates with dispersed core/shell particles in ply interfaces |
| title_full_unstemmed | Impact behaviour of prepreg laminates with dispersed core/shell particles in ply interfaces |
| title_short | Impact behaviour of prepreg laminates with dispersed core/shell particles in ply interfaces |
| title_sort | impact behaviour of prepreg laminates with dispersed core shell particles in ply interfaces |
| topic | DRNTU::Engineering::Materials::Composite materials DRNTU::Engineering::Materials::Material testing and characterization |
| url | http://hdl.handle.net/10356/61648 |
| work_keys_str_mv | AT mubarakalimohamedali impactbehaviourofprepreglaminateswithdispersedcoreshellparticlesinplyinterfaces |